mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 19:43:32 +00:00
33e8fc8687
You can now do epic things like this:
puts(_gc(xasprintf("%d", 123)));
The _gc() API is shorthand for _defer() which works like Go's keyword:
const char *s = xasprintf("%d", 123);
_defer(free, s);
puts(s);
Be sure to always use -fno-omit-frame-pointer which makes code fast too.
Enjoy! See also #114
59 lines
3 KiB
C
59 lines
3 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/calls.h"
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#include "libc/calls/kntprioritycombos.internal.h"
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#include "libc/log/log.h"
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#include "libc/nexgen32e/x86feature.h"
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#include "libc/runtime/runtime.h"
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#include "libc/sysv/consts/mlock.h"
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#include "libc/testlib/testlib.h"
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double g_avx2_juiceup_doubles_[4] forcealign(32);
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unsigned long long g_avx2_juiceup_quadwords_[4] forcealign(32);
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void testlib_benchwarmup(void) {
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/* get mathematical parts of cpu juiced up */
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if (X86_HAVE(AVX2) && X86_HAVE(FMA)) {
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asm("vmovdqa\t%1,%%ymm0\n\t"
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"vpmaddwd\t(%2),%%ymm0,%%ymm0\n\t"
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"vmovdqa\t%%ymm0,%0\n\t"
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"vzeroall"
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: "=m"(g_avx2_juiceup_quadwords_)
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: "m"(g_avx2_juiceup_quadwords_), "r"(&_base[0]));
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asm("vmovapd\t%1,%%ymm1\n\t"
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"vfmadd132pd\t(%2),%%ymm1,%%ymm1\n\t"
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"vmovapd\t%%ymm1,%0\n\t"
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"vzeroall"
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: "=m"(g_avx2_juiceup_doubles_)
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: "m"(g_avx2_juiceup_doubles_), "r"(&_base[32]));
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}
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}
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/**
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* Runs all benchmark functions in sorted order.
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*
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* @see BENCH()
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*/
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void testlib_runallbenchmarks(void) {
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_peekall();
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mlockall(MCL_CURRENT);
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nice(-1);
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__log_level = kLogWarn;
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testlib_runtestcases(__bench_start, __bench_end, testlib_benchwarmup);
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}
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